Yeah!
I tried to reset it a lot before.
At this moment, i tried to reset it 3 times, then changed de baud rate from 9600 until 115200 and after I rebooted it.
And, now, for the very first time it is working and the WIFI too!
Thank you, guys!
I hope it stays working well.

I bought 2 Onion boards. One is working pretty good, but the other looks like empty.
It starts blinking the yellow led then the led stays solid as expected, but nothing happens, no wifi signal.
PuTTY connects but a lot of garbage start to appears on the screen.
Anyone can help me?